Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
Department of Conservation Portland, Oregon
Agriculture Service
S N O W - P R E C I P I T A T I O N U P D A T E
Based on Mountain Data from NRCS SNOTEL Sites
As of SATURDAY: JUNE 15 , 2019
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
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WYOMING
SNAKE RIVER
Base Camp 7060 .0 .0 * 27.0 27.2 99
Black Bear 8170 23.0 12.1 190 56.2 48.6 116
Blind Bull Sum 8650 9.2 .1 9200* 25.8 25.6 101
Cottonwood Creek 7670 .0 .0 * 35.9 33.1 108
East Rim Divide 7930 .0 .0 * 18.3 16.0 114
Grand Targhee 9260 34.6 34.1 101 44.2 42.4 104
Granite Creek 6770 .1 .0 * 29.1 25.3 115
Grassy Lake 7265 -M .0 * -M 46.0 *
Gros Ventre Summit 8750 -M .0 * 18.0 18.3 98
Gunsight Pass 9820 4.1 .0 * 22.7 20.1 113
Lewis Lake Divide 7850 .0 .0 * 47.6 44.6 107
Phillips Bench 8200 5.2 .0 * 40.2 36.0 112
Salt River Summit 7640 .0 .0 * 24.5 22.0 111
Snake River Station 6920 .0 .0 * 32.4 29.4 110
Spring Creek Divide 9000 6.9 .0 * 31.2 30.5 102
Thumb Divide 7980 .0 .0 * 25.3 25.3 100
Togwotee Pass 9580 13.1 14.1 93 32.7 32.6 100
Two Ocean Plateau 9240 14.5 16.3 89 33.2 36.3 91
Willow Creek 8080 .0 .0 * 46.6 44.7 104
Younts Peak 8350 -M .0 * -M 22.3 *
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Basin Index (%) 144* 106
MADISON-GALLATIN
Black Bear 8170 23.0 12.1 190 56.2 48.6 116
Canyon 7870 .1 .0 * 22.3 22.4 100
Madison Plateau 7750 .8 .0 * 38.0 35.0 109
West Yellowstone 6700 .0 .0 * 23.2 20.2 115
Whiskey Creek 6800 .0 .0 * 30.9 27.6 112
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Basin Index (%) 198* 111
YELLOWSTONE
Beartooth Lake 9360 17.1 8.9 192 28.7 26.8 107
Burnt Mtn 5880 .0 .0 * 27.9 23.4 119
Canyon 7870 .1 .0 * 22.3 22.4 100
Cole Creek 7850 7.7 .4 1925* 25.3 23.4 108
Evening Star 9200 15.2 9.6 158 40.9 37.3 110
Fisher Creek 9100 -M 18.7 * 46.6 42.7 109
Northeast Entrance 7350 .0 .0 * 20.8 18.4 113
Parker Peak 9400 13.1 6.5 202 34.6 25.8 134
Sylvan Lake 8420 .1 .0 * 37.0 31.6 117
Thumb Divide 7980 .0 .0 * 25.3 25.3 100
Two Ocean Plateau 9240 14.5 16.3 89 33.2 36.3 91
White Mill 8700 8.6 8.4 102 28.8 32.6 88
Wolverine 7650 .0 .0 * 19.2 17.8 108
Younts Peak 8350 -M .0 * -M 22.3 *
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Basin Index (%) 152* 107
WIND RIVER
Burroughs Creek 8750 .0 -M * 22.9 -M *
Castle Creek 8400 .0 -M * 13.2 -M *
Cold Springs 9630 .0 .0 * 17.3 16.6 104
Deer Park 9700 .5 .0 * 27.2 28.9 94
Hobbs Park 10100 9.5 .0 * 24.1 22.0 110
Kirwin 9550 .0 .0 * 21.7 18.5 117
Little Warm 9370 .0 .0 * 13.3 19.8 67
Owl Creek 8975 .0 .0 * 16.6 12.0 138
South Pass 9040 .2 .0 * 21.1 24.9 85
St. Lawrence Alt 8620 -M .0 * -M 15.8 *
Togwotee Pass 9580 13.1 14.1 93 32.7 32.6 100
Townsend Creek 8700 .0 .0 * 21.9 19.4 113
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Basin Index (%) 165* 101
BIGHORN BASIN
Bald Mtn. 9380 12.6 3.8 332 24.1 25.5 95
Bear Trap Meadow 8200 .0 .0 * 15.5 15.3 101
Bone Springs Div 9350 4.2 .0 * 20.8 24.2 86
Grave Springs 8550 .0 .0 * 17.7 17.5 101
Kirwin 9550 .0 .0 * 21.7 18.5 117
Marquette 8760 .6 -M * 25.1 -M *
Middle Powder 7760 .0 .0 * 20.4 18.8 109
Owl Creek 8975 .0 .0 * 16.6 12.0 138
Powder River Pass 9480 .0 .0 * 16.0 20.7 77
Shell Creek 9580 6.0 .0 * 19.0 21.9 87
Timber Creek 7950 .2 .0 * 19.8 15.2 130
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Basin Index (%) 605* 101
SHOSHONE RIVER
Blackwater 9780 19.9 12.6 158 36.6 29.3 125
Evening Star 9200 15.2 9.6 158 40.9 37.3 110
Marquette 8760 .6 -M * 25.1 -M *
Sylvan Lake 8420 .1 .0 * 37.0 31.6 117
Sylvan Road 7120 .0 .0 * 22.0 23.0 96
Younts Peak 8350 -M .0 * -M 22.3 *
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Basin Index (%) 159* 113
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 15.5 15.3 101
Cloud Peak Reservoir 9860 5.6 .0 * 22.3 23.1 97
Grave Springs 8550 .0 .0 * 17.7 17.5 101
Hansen Sawmill 8360 .1 .0 * 18.1 15.8 115
Middle Powder 7760 .0 .0 * 20.4 18.8 109
Powder River Pass 9480 .0 .0 * 16.0 20.7 77
Soldier Park 8720 .0 -M * 16.3 -M *
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Basin Index (%) * 99
TONGUE RIVER
Big Goose 7990 .2 .0 * 22.9 19.6 117
Bone Springs Div 9350 4.2 .0 * 20.8 24.2 86
Burgess Junction 7880 .0 .0 * 20.1 19.7 102
Dome Lake 8880 -M .0 * 23.0 22.0 105
Little Goose 8870 .0 -M * 16.7 -M *
Sucker Creek 8880 .0 .0 * 23.9 23.4 102
Tie Creek 6870 .0 .0 * 24.6 20.8 118
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Basin Index (%) * 104
BELLE FOURCHE
Blind Park 6890 .0 .0 * 12.8 20.4 63
Cole Canyon 5910 .0 .0 * 22.6 18.9 120
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Basin Index (%) * 90
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 12.8 20.4 63
North Rapid Creek 6130 -M .0 * 14.0 18.2 77
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Basin Index (%) * 69
UPPER N. PLATTE
Arapaho Ridge 10960 15.2 .3 5067* 35.9 30.9 116
Blackhall Mtn 9820 12.6 -M * 43.0 -M *
Columbine 9160 .0 .0 * 36.8 32.4 114
Divide Peak 8880 .0 .0 * 31.7 28.5 111
Joe Wright 10120 10.1 3.6 281 38.1 35.8 106
Laprele Creek 8375 .0 .0 * 20.9 19.2 109
Med Bow 10500 29.9 -M * 46.0 -M *
Never Summer 10280 14.8 5.2 285 26.3 -M *
North French Creek 10130 16.2 9.6 169 39.2 36.6 107
Old Battle 10000 31.6 4.4 718 47.3 45.0 105
Rawah 9020 .2 .0 * 23.5 21.2 111
Sage Creek Basin 7850 -M .0 * 21.7 18.9 115
Sand Lake 10050 24.2 9.2 263 33.4 35.0 95
South Brush Creek 8440 .0 .0 * 18.2 22.2 82
Tower 10500 38.8 21.4 181 58.7 51.0 115
Webber Springs 9250 2.4 .0 * 40.4 34.2 118
Whiskey Park 8950 .2 .0 * 41.3 36.3 114
Willow Creek Pass 9540 .1 .0 * 22.6 19.6 115
Zirkel 9340 .0 .0 * 43.7 36.0 121
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Basin Index (%) 286* 110
SWEETWATER
Deer Park 9700 .5 .0 * 27.2 28.9 94
Larsen Creek 9000 .0 .0 * 18.7 -M *
South Pass 9040 .2 .0 * 21.1 24.9 85
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Basin Index (%) * 90
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 24.1 23.2 104
Laprele Creek 8375 .0 .0 * 20.9 19.2 109
Reno Hill 8400 .1 .0 * 27.7 24.1 115
Windy Peak 7900 .1 .0 * 17.9 17.6 102
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Basin Index (%) * 108
LARAMIE RIVER
Brooklyn Lake 10240 1.4 .0 * 34.7 29.7 117
Cinnabar Park 9574 .7 .0 * 32.1 32.2 100
Crow Creek 8330 .0 .0 * 17.2 18.5 93
Deadman Hill 10220 1.1 .0 * 26.2 25.1 104
Rawah 9020 .2 .0 * 23.5 21.2 111
Roach 9700 .1 .0 * 30.8 27.1 114
Windy Peak 7900 .1 .0 * 17.9 17.6 102
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Basin Index (%) * 106
S. PLATTE
Black Mountain 8920 .0 -M * 19.8 -M *
Crow Creek 8330 .0 .0 * 17.2 18.5 93
Deadman Hill 10220 1.1 .0 * 26.2 25.1 104
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Basin Index (%) * 100
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 22.0 20.1 109
Divide Peak 8880 .0 .0 * 31.7 28.5 111
Elk River 8700 .0 .0 * 26.2 26.6 98
Little Snake River 8915 .0 .0 * 47.3 38.1 124
Old Battle 10000 31.6 4.4 718 47.3 45.0 105
Sage Creek Basin 7850 -M .0 * 21.7 18.9 115
Sandstone RS 8150 .0 .0 * 24.1 24.3 99
Whiskey Park 8950 .2 .0 * 41.3 36.3 114
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Basin Index (%) 723* 110
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 20.0 19.2 104
Blind Bull Sum 8650 9.2 .1 9200* 25.8 25.6 101
East Rim Divide 7930 .0 .0 * 18.3 16.0 114
Elkhart Park G.S. 9400 .0 .0 * 21.0 19.2 109
Gros Ventre Summit 8750 -M .0 * 18.0 18.3 98
Gunsight Pass 9820 4.1 .0 * 22.7 20.1 113
Indian Creek 9425 6.7 .0 * 27.5 29.3 94
Kendall R.S. 7740 .0 .0 * 18.1 18.6 97
Loomis Park 8240 .6 .0 * 24.4 22.6 108
New Fork Lake 8340 .0 .0 * 17.4 15.8 110
Pocket Creek 9360 .0 -M * 20.5 -M *
Snider Basin 8060 .0 .0 * 19.5 18.4 106
Spring Creek Divide 9000 6.9 .0 * 31.2 30.5 102
Triple Peak 8500 -M .0 * -M 32.9 *
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Basin Index (%) 27500* 104
LOWER GREEN RIVER
Blacks Fork Jct 8869 .1 -M * 19.6 -M *
Buck Pasture 9632 .0 -M * 28.9 -M *
EF Blacks Fork GS 9360 .0 -M * 20.0 -M *
Hams Fork 7840 .0 .0 * 20.4 16.3 125
Hewinta 9500 .0 .0 * 22.3 19.6 114
Hickerson Park 9122 .0 .0 * 18.3 15.2 120
Hole-in-Rock 9168 .1 .0 * 18.7 14.8 126
Indian Creek 9425 6.7 .0 * 27.5 29.3 94
Kelley R.S. 8180 .3 .0 * 24.9 24.0 104
Spirit Lk 10235 .9 -M * 25.4 -M *
Steel Creek Park 10158 4.3 .0 * 27.8 23.0 121
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Basin Index (%) * 112
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 21.7 -M *
Bug Lake 7987 .0 .0 * 32.9 25.6 129
Burts Miller Ranch 8000 .0 -M * 11.8 -M *
Chalk Creek #1 9171 .0 .0 * 39.2 33.4 117
Hayden Fork 9130 .0 .0 * 31.5 28.0 112
Kelley R.S. 8180 .3 .0 * 24.9 24.0 104
Lily Lake 9133 .0 .0 * 23.2 23.5 99
Monte Cristo 8932 7.3 .0 * 42.6 34.2 125
Salt River Summit 7640 .0 .0 * 24.5 22.0 111
Spring Creek Divide 9000 6.9 .0 * 31.2 30.5 102
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Basin Index (%) * 113
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.
